PCA9485 Overview
The PCA9485 is a highly integrated switched-capacitor converter with an embedded OVPFET and dual external FET controls, targeted to provide the quadruple output current for the fast charging applications with a 1-cell battery. voltage for each VUSB, VWPC, VIN, VOUT, and VUSB/VWPC input is designed to support up to 35 V. VIN input supports up to 27 V with the pre-bias enabled for USB VBUS/wireless receiver output.
PCA9485 Key Features
- Dual-phase switched-capacitor to optimize efficiency
- Reverse operation mode, such as 1:4, 1:2 and reverse bypass from VOUT to VIN
- 96.8 % efficiency at VOUT = 4.5 V and IVOUT = 8 A
- Wide range of input voltage
- From 6 V to 10.5 V in 2:1 switching operation mode
- From 12 V to 21 V in 4:1 switching operation mode
- An OVPFET with IVIN and VBAT regulation loop
- External FET gate control for GaN and CMOS
- Support dual input via USB and wireless power receiver
- Multiple Safety Schemes